What are the principal advantages of using a single building information model of the existing conditions as the foundation for modeling proposed additions or renovations?

• Why not create a separate model for the new proposed design?

By creating two proposals in one model, it is possible to make proposals graphically by the client. It also allows you to render two suggestions with exactly the same settings, making it easier to tell the difference.

What sort of complexities are introduced when you construct a building complex in phases?

• What happens at the interfaces between the buildings as the phases advance?
• How can you plan and prepare for these complexities as your create your initial building model?

What are the principal advantages of using a single building information model of the existing conditions as the foundation for modeling several proposed design alternatives for a portion of the building?

• Why not create a separate model for each of the design alternatives?

Since the demolition range can be clearly assigned to the existing building, it is easier to understand which proposal is more suitable for extension or renovation. Therefore, using a single building information model enable us to compare how much part is needed to destroy the existing building.

In your project, which features of the proposed design did you choose to model as design alternatives?

• Why did you choose these building features? And what were the biggest challenges in modeling them as the design alternatives?